* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: #1a1a1a;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 20px 20px;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 900px;
}

.search-bar {
    margin-bottom: 20px;
    position: relative;
}

#searchInput {
    width: 100%;
    padding: 15px 20px;
    font-size: 16px;
    border: 2px solid #333;
    border-radius: 4px;
    background: #f5f5f5;
    color: #000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    outline: none;
    transition: all 0.3s ease;
}

#searchInput:focus {
    border-color: #000;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
}

.result-count {
    position: absolute;
    right: 75px;
    top: 50%;
    transform: translateY(-50%);
    color: #333;
    font-size: 14px;
    font-weight: 600;
    pointer-events: none;
}

.toggle-view-btn {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    width: 45px;
    height: 45px;
    border: 2px solid #000;
    background: #fff;
    color: #000;
    border-radius: 2px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.toggle-view-btn:hover {
    background: #000;
    color: #fff;
    transform: translateY(-50%) scale(1.05);
}

.toggle-view-btn:active {
    transform: translateY(-50%) scale(0.95);
}

.gallery {
    display: flex;
    align-items: center;
    gap: 15px;
    background: #fff;
    border: 3px solid #000;
    border-radius: 2px;
    padding: 30px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.5);
    margin-bottom: 20px;
}

.image-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 400px;
    position: relative;
    touch-action: pan-y;
}

#mainImage {
    max-width: 100%;
    max-height: 500px;
    height: auto;
    border: 2px solid #e5e5e5;
    border-radius: 2px;
    object-fit: contain;
    user-select: none;
    -webkit-user-drag: none;
}

.image-info {
    margin-top: 20px;
    text-align: center;
    width: 100%;
}

#imageName {
    font-size: 20px;
    color: #000;
    font-weight: 700;
    margin-bottom: 8px;
    word-wrap: break-word;
    letter-spacing: 0.5px;
}

#imageCounter {
    font-size: 14px;
    color: #333;
    font-weight: 600;
    font-family: 'Courier New', monospace;
}

.nav-btn {
    background: #000;
    color: white;
    border: 2px solid #000;
    width: 50px;
    height: 50px;
    border-radius: 2px;
    font-size: 32px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    flex-shrink: 0;
}

.nav-btn:hover {
    background: #fff;
    color: #000;
    transform: scale(1.05);
}

.nav-btn:active {
    transform: scale(0.95);
}

.nav-btn:disabled {
    background: #ccc;
    border-color: #999;
    color: #666;
    cursor: not-allowed;
    transform: scale(1);
}

.controls {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.download-btn {
    flex: 1;
    padding: 15px 25px;
    font-size: 16px;
    font-weight: 700;
    border: 2px solid #000;
    border-radius: 2px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: all 0.2s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.png-btn {
    background: #fff;
    color: #000;
}

.png-btn:hover {
    background: #000;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
}

.svg-btn {
    background: #000;
    color: #fff;
}

.svg-btn:hover {
    background: #fff;
    color: #000;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
}

.svg-btn:disabled,
.png-btn:disabled {
    background: #e5e5e5;
    color: #999;
    border-color: #ccc;
    cursor: not-allowed;
    transform: none;
}

.download-btn:active {
    transform: translateY(0);
}

/* Grid View */
.grid-view {
    display: none;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    background: #fff;
    border: 3px solid #000;
    border-radius: 2px;
    padding: 30px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.5);
}

.grid-view.active {
    display: grid;
}

.grid-item {
    position: relative;
    aspect-ratio: 1;
    border: 2px solid #e5e5e5;
    border-radius: 2px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s ease;
    background: #fafafa;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.grid-item:hover {
    border-color: #000;
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
}

.grid-item img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 10px;
}

.grid-item-name {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    color: white;
    padding: 8px;
    font-size: 11px;
    text-align: center;
    opacity: 0;
    transition: opacity 0.2s ease;
    word-wrap: break-word;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.grid-item:hover .grid-item-name {
    opacity: 1;
}

/* Hide single view when grid is active */
.gallery.hidden,
.controls.hidden {
    display: none;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    body {
        padding: 10px;
        background-size: 15px 15px;
    }

    .gallery {
        padding: 20px 10px;
        gap: 10px;
        border-width: 2px;
    }

    .image-container {
        min-height: 300px;
    }

    #mainImage {
        max-height: 350px;
    }

    .nav-btn {
        width: 40px;
        height: 40px;
        font-size: 24px;
    }

    #imageName {
        font-size: 16px;
    }

    .controls {
        flex-direction: column;
    }

    .download-btn {
        width: 100%;
    }

    .grid-view {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 15px;
        padding: 20px;
        border-width: 2px;
    }
}

@media (max-width: 480px) {
    body {
        background-size: 10px 10px;
    }

    .gallery {
        padding: 15px 5px;
    }

    .image-container {
        min-height: 250px;
    }

    #mainImage {
        max-height: 280px;
    }

    #searchInput {
        font-size: 14px;
        padding: 12px 16px;
    }

    #imageName {
        font-size: 14px;
    }

    .grid-view {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 10px;
        padding: 15px;
    }

    .toggle-view-btn {
        width: 40px;
        height: 40px;
    }

    .toggle-view-btn svg {
        width: 20px;
        height: 20px;
    }

    .download-btn {
        font-size: 14px;
        padding: 12px 15px;
    }
}